diff --git a/source/ubl-settings-bootloader.cc b/source/ubl-settings-bootloader.cc
index c0bad27..a1d91b0 100755
--- a/source/ubl-settings-bootloader.cc
+++ b/source/ubl-settings-bootloader.cc
@@ -592,9 +592,15 @@ void MainWindow::event(){
         entryIPT->signal_focus_out_event().connect(sigc::mem_fun(*this, &MainWindow::focus_out_txt_IPT));
         entryOTT->signal_focus_out_event().connect(sigc::mem_fun(*this, &MainWindow::focus_out_txt_OTT));
     }
+    this->signal_delete_event().connect(sigc::mem_fun(*this, &MainWindow::gui_exit));
     chbLoadVariantSelectionTimer->signal_toggled().connect(sigc::mem_fun(*this, &MainWindow::set_active_boot_second));
 }
 
+bool MainWindow::gui_exit(GdkEventAny*) {
+    exit(1);
+    return true;
+}
+
 void MainWindow::change_security_login() {
     int index = chbSecurityLogin->get_active_row_number();
     if (index == 0) {
diff --git a/source/ubl-settings-bootloader.h b/source/ubl-settings-bootloader.h
index ac0ca76..eab3aa6 100644
--- a/source/ubl-settings-bootloader.h
+++ b/source/ubl-settings-bootloader.h
@@ -146,6 +146,7 @@ class MainWindow : public Gtk::ApplicationWindow {
         void set_row_all(std::map <string, string> &map_cmd, Glib::RefPtr<Gtk::ListStore> &list_store, vector<string> &list_params, size_t size,string key);
         void set_row(Glib::RefPtr<Gtk::ListStore> &list_store, int size, std::string name, bool flag_chbox);
         void get_builder();
+        bool gui_exit(GdkEventAny*);
         void init_dict(string flag_load);
         void add_CSS();
         void show_pass();